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Sitebulb vs SEOnaut

Sitebulb (Desktop and cloud SEO crawler) and SEOnaut (Open-source web-based SEO auditing tool (self-hosted or hosted)) on the same 24 capabilities, with a source for every cell and charts counted from the table.

Checked 21 October 2026 against each vendor's own public pages. Sources below.

Sitebulb

Desktop and cloud SEO crawler

Paid subscription; Cloud from £95/month (FAQ)Local or cloud

SEOnaut

Open-source web-based SEO auditing tool (self-hosted or hosted)

Free MIT self-host; hosted Growth $9/monthRuns on your machine

Compatibility at a glance

Sitebulb scores 88 on coverage and 58 on automation; SEOnaut scores 8 and 25. Both out of 100, counted from the table.

Out of 24 capabilities we compare for every tool.

5both have
13only Sitebulb
2only SEOnaut

Market map

Crawl, audit and data coverage / Automation and AI agents: SpiderHead 71·83, Screaming Frog 92·75, Sitebulb 88·58, Ahrefs Site Audit 75·75, Semrush Site Audit 63·75, SEOnaut 8·25, LibreCrawl 29·50, advertools 21·2500252550507575100100Crawl, audit and data coverage →Automation and AI agents →SpiderHeadScreaming FrogSitebulbAhrefs Site AuditSemrush Site AuditSEOnautLLibreCrawlAadvertools
Scores are counted from the table: yes = 1, partly = ½, no or not found in public docs = 0, as a share of the rows on each axis. Horizontal: Crawl, audit and data coverage (12 rows). Vertical: Automation and AI agents (6 rows). Hover or focus a marker for the breakdown; click to keep it open.

Coverage by group

Share of rows each tool covers in a group, 0–100, counted from the table below.

30Price and setup5 rows90
50Interfaces2 rows0
50AI agents and integrations2 rows0
100Crawl3 rows33
100Audit5 rows0
63Data sources4 rows0
50Reports and follow-up3 rows17
65Overall24 rows25

Side by side

CapabilitySitebulbSEOnaut
Price and setup
Free to useNo: Paid subscription; Cloud from £95/month (FAQ)Yes: Free MIT self-host; hosted Growth $9/month
Open sourceNo: Proprietary commercial softwareYes: Yes, MIT licence (LICENSE file / README)
Runs on your machinePartly: Desktop crawls locally; Cloud runs in browserYes: Self-hosted via Docker; hosted version also exists
Works without an accountPartly: Cloud and MCP need an account; Desktop not statedPartly: Sign-in in the web app; hosted needs sign-up
Free tierPartly: 14-day trial equal to Pro, no card; no free tierYes: Hosted Lite: 1 project, 500 URLs; self-host: none stated
Interfaces
Desktop appYes: Windows 10/11 (64-bit), macOS Sonoma+ (Apple/Intel)No: Web app run via Docker, no native app
Command lineNot found in public docs: Not found in public docsNot found in public docs: Not found in public docs
AI agents and integrations
MCP server for AI agentsYes: Official read-only MCP for Claude/ChatGPT, Desktop and CloudNot found in public docs: Not found in public docs
APINo: Cloud: no API yet; webhooks and Data Studio connectorNot found in public docs: Not found in public docs
Crawl
JavaScript renderingYes: Evergreen Chromium rendering, all plans, toggleableNot found in public docs: Not found in public docs
Scheduled crawlsYes: Scheduled/recurring audits on Pro and CloudYes: Hosted Growth lists recurring audits
Custom extractionYes: Content Extraction (CSS selector, regex) and Content SearchNot found in public docs: Not found in public docs
Audit
Audit checksYes: 300+ Hints (vendor Hints page)Not found in public docs: No count published; issues in 3 severity levels
HreflangYes: Hreflang report/checkerNot found in public docs: Not found in public docs
Structured dataYes: Structured Data validator reportNot found in public docs: Not found in public docs
Core Web Vitals / LighthouseYes: Web Vitals and Lighthouse via Chrome, sampled (default 10%)Not found in public docs: Not found in public docs
AccessibilityYes: Accessibility audit, 35+ Hints linked to axe guidesNot found in public docs: Not found in public docs
Data sources
Google Search ConsoleYes: Search Console data, keywords and URL InspectionNot found in public docs: Not found in public docs
Google Analytics 4Yes: GA4 (or Universal) visitor data in auditsNot found in public docs: Not found in public docs
Backlink dataNot found in public docs: Not found in public docsNot found in public docs: Not found in public docs
Keyword dataPartly: Keywords report from Search Console data onlyNot found in public docs: Not found in public docs
Reports and follow-up
Report exportsYes: Custom PDF reports, Data Studio, Google Sheets; CSV/XLSXPartly: Report export mentioned; formats not named
Task list and fix recheckPartly: Prioritized Hints and audit-to-audit comparisonNot found in public docs: Not found in public docs
Reads Screaming Frog exportsNot found in public docs: Not found in public docsNot found in public docs: Not found in public docs
yespartlynonot found in public docs

Where each one is stronger

Sitebulb

  • Prioritized Hints (300+) explain each issue and why it matters, which suits client-facing audits.
  • Customizable PDF reports and Data Studio / Google Sheets connectors for stakeholder reporting.
  • Cloud edition supports team collaboration on shared crawl data and crawls up to 10 million URLs per audit.
  • Built-in Search Console and GA4 integration, including URL Inspection data and orphan-page discovery.
  • Site-wide Web Vitals and Lighthouse collection in the crawl, with findings grouped across pages.

SEOnaut

  • Ships as a ready web dashboard with charts and issues grouped by severity, with no scripting needed
  • MIT-licensed code that can be self-hosted with a Docker compose file
  • Offers an optional hosted version with team collaboration and recurring audits
  • Stores crawl results in MySQL, which suits a persistent multi-project web interface

Questions

Which is cheaper, Sitebulb or SEOnaut?
Sitebulb: Paid subscription; Cloud from £95/month (FAQ). SEOnaut: Free MIT self-host; hosted Growth $9/month. Prices as published on 21 October 2026; check the vendors' pricing pages before you buy.
Does Sitebulb or SEOnaut run on my own machine?
Sitebulb: desktop crawls locally; Cloud runs in browser. SEOnaut: self-hosted via Docker; hosted version also exists.
Can AI agents use Sitebulb or SEOnaut?
MCP server — Sitebulb: official read-only MCP for Claude/ChatGPT, Desktop and Cloud; SEOnaut: not found in public docs. API — Sitebulb: cloud: no API yet; webhooks and Data Studio connector; SEOnaut: not found in public docs.
How much does Sitebulb cost?
It is a paid subscription with a 14-day free trial (equivalent to Pro desktop, no card). Desktop has Lite (10,000 URLs per audit) and Pro (500,000 URLs); Cloud requires 2+ users and starts from £95/month per the FAQ. Desktop prices were not readable on the pricing page; yearly plans save 15%.
Is SEOnaut free?
The community edition is open source under the MIT licence and can be self-hosted. The hosted service lists a free Lite plan (1 project, 500 URLs) and a Growth plan at $9/month on its site as of 2026-10-21.

How we compared

  • Every cell comes from the vendor's own public pages (product, documentation, pricing, release notes, repository) on 21 October 2026.
  • “Not found in public docs” means we could not confirm it from an official source, not that the feature is missing. Charts count it as 0.
  • Prices and plans change. Check the vendor's pricing page before you buy.
  • Spotted something out of date? Tell us and we will correct it.

Sources

Sitebulb is a trademark of Sitebulb Limited. SEOnaut is a trademark of SEOnaut project (open source). Names and icons identify the products compared; SpiderHead is not affiliated with, endorsed or sponsored by Sitebulb Limited or SEOnaut project (open source). Owners can ask us to remove an icon via contact.

Compare with SpiderHead

SpiderHead vs SitebulbDesktop and cloud SEO crawlerSpiderHead vs SEOnautOpen-source web-based SEO auditing tool (self-hosted or hosted)All tools, one table8 SEO crawlers and audit tools

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